<template>
  <div>
    <!-- 导航条区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/welcome' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>
    <el-card>
      <!-- 为 ECharts 准备一个具备大小（宽高）的 DOM -->
      <div id="main"
           style="width: 600px;height:400px;"></div>
    </el-card>
  </div>
</template>
<script>
import echarts from 'echarts'
import _ from 'lodash'

export default {
  data () {
    return {
      options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
    }
  },
  mounted () {
    // 基于准备好的dom，初始化echarts实例
    var myChart = echarts.init(document.getElementById('main'))

    // 指定图表的配置项和数据
    const that = this
    this.$http.get('reports/type/1', {
      params: this.queryInfo
    }).then(
      function (res) {
        if (res.data.meta.status !== 200) {
          that.$message.error('获取数据失败')
        }
        const option = _.merge(res.data.data, that.options)
        console.log(option)
        // 使用刚指定的配置项和数据显示图表。
        myChart.setOption(option)
      })
  }
}
</script>
<style lang="less" scoped>
</style>
